Fluctuations, linear response and heat flux of an aging system

Juan Ruben Gomez-Solano 1 Artyom Petrosyan 1 Sergio Ciliberto 1
1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
Abstract : We measure the fluctuations of the position of a Brownian particle confined by an optical trap in an aging gelatin droplet after a fast quench. Its linear response to an external perturbation is also measured. We compute the spontaneous heat flux from the particle to the bath due to the nonequilibrium formation of the gel. We show that the mean heat flux is quantitatively related to the violation of the equilibrium fluctuation-dissipation theorem as a measure of the broken detailed balance during the aging process.
Keywords : colloids gels glass transitions Fluctuatios
Type de document :
Article dans une revue
EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2012, 98 p.10007, pp.6
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https://hal-ens-lyon.archives-ouvertes.fr/ensl-00653786
Contributeur : Sergio Ciliberto <>
Soumis le : jeudi 1 mars 2012 - 18:45:25
Dernière modification le : jeudi 19 avril 2018 - 14:54:03
Document(s) archivé(s) le : jeudi 31 mai 2012 - 02:56:07

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  • HAL Id : ensl-00653786, version 2
  • ARXIV : 1112.5244

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ENS-LYON | UNIV-LYON1

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Juan Ruben Gomez-Solano, Artyom Petrosyan, Sergio Ciliberto. Fluctuations, linear response and heat flux of an aging system. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2012, 98 p.10007, pp.6. 〈ensl-00653786v2〉

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